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Dendrochronology Dendrochronology Teacher Reference Unit The Laboratory of Tree‐Ring Research The University of Arizona 1215 E. Lowell Street Tucson, Arizona 85721 © 2015 Foreword The lessons in this teacher reference unit were created for the STEMAZing “Branching Out” Dendrochronology Workshop held at the Laboratory of Tree-Ring Research on December 19, 2015. These lessons were designed to be used by K-12 educators who have completed training through the University Of Arizona Laboratory Of Tree-Ring Research Outreach Program. Pamela J. Pelletier TÜ|Ç VA [täxÜÄtÇw Pamela Pelletier, M.S. Arin C. Haverland, Ph.D. Director of Outreach Outreach & Research Assistant [email protected] [email protected] Acknowledgements We would like to acknowledge the UA Laboratory of Tree-Ring Research team of researchers and docents that have contributed to this project. We would also like to thank DaNel Hogan and her amazing team of educators. Your generosity and enthusiasm has enabled our educational team to provide innovative curriculum and training for Arizona STEM educators that ” branches out” and brings tree-rings to classrooms, and beyond. Thank you for giving us the opportunity to grow with you. Andrew E. Douglass and Dendrochronology An educator’s guide to Dendrochronology in Arizona Our History In 1937 A. E. Douglass, founder of the modern science of dendrochronology, established the Laboratory of Tree‐Ring Research at the University of Arizona. The Tree‐Ring Lab is recognized worldwide as a preeminent center for the advancement of tree‐ring techniques and the broad application of dendrochronology in the social and environmental sciences. Dendrochronology is the dating and study of annual rings in trees. Dendrochronologists use tree rings to answer questions about the natural world and the place of humans in its functioning. The practical applications of the study of tree rings are numerous. Dendrochronology is an interdisciplinary science, and its theory and techniques can be applied to many applications. Our Facilities and Programs The new Bryant Bannister Tree‐Ring Building (BBTRB) offers a fabulous opportunity to engage and educate UA students and their families, visitors and the public. Many superlative specimens and the science stories behind them are on display in the new building for all to learn about, enjoy and to be inspired by. We’re on our way to hosting more than 7,000 visitors per year. Great discoveries in archaeology, climatology, geology and ecology have been made at LTRR. Continuing work at LTRR is on the cutting edge of research and teaching in water, earth, fire, and archaeological sciences. Our faculty, students, and scientific staff are engaged in a diverse array of research programs which include fire history and fire ecology, paleoclimatology, archaeology, paleoecology, biogeochemistry, geomorphology, numerical and statistical modeling, and even public health. How You Can Join the Laboratory of Tree-Ring Research! We offer volunteer and docent opportunities at the new Bryant Bannister Tree‐Ring Building, providing tours of the building and showing the main exhibit floor, working behind the scenes, helping with K‐20 group tours and other special outreach events. 1. Become a Docent Docents are volunteer educators. They work at the Laboratory of Tree-Ring Research with visitors of all ages, helping them learn about dendrochronology and the interdisciplinary research taking place at the Laboratory. Docents must be 18 years of age or older, and must attend at least one of our training sessions offered throughout the year. Docents should be willing to commit to volunteering for at least 6 hours per semester, for at least one year after training is completed. If you are a UofA student, you may also be able to enroll in an independent study course for credit hours. All docents are provided a Laboratory of Tree-Ring Research t-shirt, name badge, and free parking! They take tree-ring samples and artifacts to an exhibit and use those props to engage Laboratory guests in conversation. They may provide hour-long tours throughout the exhibit hall and Laboratory. They may assist with special events at the Laboratory or at off-campus events, including educational presentations. They may conduct a presentation in our educational classroom, either with schoolchildren or adults. 2. Become a Junior Docent Junior Docents are teen volunteer educators. Teen volunteers may be 13-17 years old, and must attend at least one of our training sessions offered throughout the year. Junior Docents should be willing to commit to volunteering for 6 hours per semester, for at least one year after training is completed. Junior docents serve in the same capacity as docents, based on their age and interests. All Junior Docents are provided a Laboratory of Tree-Ring Research t-shirt, a name badge, and free parking! 3. Become involved Behind-the-Scenes and Beyond-the-Lab The Laboratory participates in several events throughout the year including the Tucson Festival of Books. We need assistance in the following areas: Ticket Attendants for events such as Open House tours. Duties include explaining Lab tours, directing guests, handing out and collecting tickets. Photographer: Taking pictures of events, asking guests to sign a media release form. Set Up for events: Placing linen on tables, putting signs up, setting up chairs, and other small set up needs. Representation at information tables at events. Office duties: Help with mailings, typing spreadsheets, shredding, cutting flyers, sorting documents, filing, making copies, etc. Miscellaneous duties: include handing out drinking water to staff, volunteers, and vendors; counting tickets; keeping an eye on children; handing out flyers; answering guest questions; and much more! Laboratory of Tree‐Ring Research Outreach Website: http://ltrr.arizona.edu/outreach Laboratory of Tree‐Ring Research Calendar: http://ltrr.arizona.edu/calendar/month Contact Information: Pamela Pelletier, Director of Outreach 520‐621-0984 or [email protected] Overview of Lesson Titles and Unit Objectives (4 Lessons) Lesson 1: From Seeds to Giants Objectives: Identify the parts of the tree List the nutrients and processes necessary for tree-growth Label structural components of annual tree-rings in conifer species Define the term Dendrochronology Lesson 2: Observing the Past Objectives: List ecological events that may impact tree-growth List anthropogenic (human) activities that may impact tree-growth Identify tree adaptations Describe several techniques used to analyze tree-growth Lesson 3: Rings of Fire Objectives: Label the Fire Triangle Define a Fire Regime Describe relationships associated with droughts, fires, and insects Make conclusions about fire by analyzing tree-rings Lessons 4 The Tales Trees Tell Objectives: Describe how humans have used/interacted with trees throughout human history List descriptive words and emotions that are related to trees Demonstrate a connection between art and science by creating artwork that analyzes and interprets one or more aspects of tree-rings Basic Equipment and Realia by Lesson These are the items that you will need for teaching the lessons in this unit. You will also find a list of additional and optional resources at the end of the lesson. At the end of the teaching reference unit we have provided a list of resources that will assist you in checking out equipment, ordering supplies, finding a scientist to visit your classroom, scheduling a class visit to our lab, or scheduling to attend a training workshop for additional skill building. Lesson 1: From Seeds to Giants o Branching Out Bellwork cards o “Related” and “Unrelated” Cards o Tree-ring cross sections (or copies of laminates) o Tree-ring cores (or paper cores) o Macro lenses or magnifying glasses o Note cards or other method for students to record observations Lesson 2: Observing the Past o Tree-ring cross sections (or copies of laminates) o Paper Cookies/Cores o Crayons or colored pencils o Cross-Matching Tree-Core Sets Lesson 3: Rings of Fire o Fire Ecology Exercise by Daniels 2008 o Paper Cookies o Paper Map o Overhead or PowerPoint to work on fire mapping samples as a group Lesson 4: The Tales Trees Tell o Art Supplies o Poster board o PowerPoint/Video Capture (option to have students create a video or slide show) o Tree-Ring Imagery o Tree-Ring Vocabulary List o Audience Rubric o TImer A Practical Guide to Our Lesson Plan Format (Listed by Sections A-K with explanations in blue) The Laboratory of Tree-Ring Research The University of Arizona 1215 E. Lowell Street Tucson, AZ 85721 http://ltrr.arizona.edu/ Area(s): TBD by Educator (fits well in plant and earth sciences as well as geography) Dendrochronology Lesson 1: Branching Out A. Academic Standards and Performance Objectives which are cross-walked across disciplines to meet the State of Arizona Reading, Math and Science Standards (ADE, 2015) STANDARDS: ACADEMIC Unit (ADE Standard): Reading Math Science *ADE is Arizona Department of Education INDICATORS: Lesson Title (ADE Measurement Criteria): Objectives: (ADE Measurement Criteria): PO: PO: PO: B. Need: How students may benefit from and apply this lesson. C. Time: Instruction time for this lesson. D. Resources: Resources used to create content for this lesson that may be used for obtaining more information about the lesson topics. E. Realia (Tools, Equipment, and Supplies): A list of supplies that you will need for the lesson, and suggestions for lesson props (also known as realia) that bring the lesson to life in the classroom and help make lesson concepts more valuable and interesting for you and your students. F. Key Terms: Terms that students will need to know for the lesson as well as terms that will help the instructor to stimulate discussion. G. Bellwork: A 3-5 minute activity which is posted at the beginning of each class so that students are immediately engaged in the learning process through a simple “bellwork” task or assignment.
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